1 /*
2 * Copyright (c) 1993 Ulrich Pegelow <pegelow@moorea.uni-muenster.de>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * Copyright (c) 2003-2006 Roland McGrath <roland@redhat.com>
7 * Copyright (c) 2006-2015 Dmitry V. Levin <ldv@altlinux.org>
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include "defs.h"
34
35 #ifdef HAVE_SYS_SHM_H
36 # include <sys/shm.h>
37 #elif defined HAVE_LINUX_SHM_H
38 # include <linux/shm.h>
39 #endif
40
41 #include "xlat/shm_resource_flags.h"
42 #include "xlat/shm_flags.h"
43
SYS_FUNC(shmget)44 SYS_FUNC(shmget)
45 {
46 const int key = (int) tcp->u_arg[0];
47 if (key)
48 tprintf("%#x", key);
49 else
50 tprints("IPC_PRIVATE");
51 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]);
52 if (printflags(shm_resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0)
53 tprints("|");
54 print_numeric_umode_t(tcp->u_arg[2] & 0777);
55 return RVAL_DECODED;
56 }
57
SYS_FUNC(shmat)58 SYS_FUNC(shmat)
59 {
60 if (entering(tcp)) {
61 tprintf("%d, ", (int) tcp->u_arg[0]);
62 if (indirect_ipccall(tcp)) {
63 printaddr(tcp->u_arg[3]);
64 tprints(", ");
65 printflags(shm_flags, tcp->u_arg[1], "SHM_???");
66 } else {
67 printaddr(tcp->u_arg[1]);
68 tprints(", ");
69 printflags(shm_flags, tcp->u_arg[2], "SHM_???");
70 }
71 return 0;
72 } else {
73 if (syserror(tcp))
74 return 0;
75 if (indirect_ipccall(tcp)) {
76 union {
77 uint64_t r64;
78 uint32_t r32;
79 } u;
80 if (umoven(tcp, tcp->u_arg[2], current_wordsize, &u) < 0)
81 return RVAL_NONE;
82 tcp->u_rval = (sizeof(u.r32) == current_wordsize)
83 ? u.r32 : u.r64;
84 }
85 return RVAL_HEX;
86 }
87 }
88
SYS_FUNC(shmdt)89 SYS_FUNC(shmdt)
90 {
91 printaddr(tcp->u_arg[indirect_ipccall(tcp) ? 3 : 0]);
92 return RVAL_DECODED;
93 }
94